leaving only an inside snap after removal of the tamper element

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Patents Grantslast 30 patents

Information Patent Grant
Tamper evident food package
- Patent number 4,488,658
- Issue date Dec 18, 1984
- Sealright Co, Inc.
- Ernest L. Smith
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Tamper-evident closure
- Patent number 4,487,329
- Issue date Dec 11, 1984
- Maryland Cup Corporation
- Thomas W. Winstead
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
3189214
- Patent number 3,189,214
- Issue date Jun 15, 1965
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL